Railway draft-rigging.



J. F. OCONNOR. RAILWAY DRAFT RlGGING. APPLlcAnoN HLED MAR. 23, 19ur Putentd Apr. 29, 1919.

2 SHEETS-SHEET 2.

I N V ENTOR. Jo/w/ @fz/wr BY QQ, A TTORN EY INESSES.-

JOHN' F. OCONNOR,` OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM H. MINER, 0F

CHAZY, NEW YORK.

RAILVY DRAFT-RIGGING.

Application'led March 23, 1917.

To all ali/wm t may concern.'

Be it known that I. JOHN F. OCoxxon, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Railway Draft-Rig gings, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this speciiication.

This invention relates to improvements in railway draft riggings.

The object of the invention is to provide a high capacity friction gear of compact arrangement and wherein the space between the stops is utilized by the friction elements andl the springs disposed outside of said space and between the sills.

In the drawing forming a part of this speci` fication, Figure 1 is a vertical longitudinal section of a portion of a draft rigging showing my improvements in connection therewith. Y Fig. 2 is a horizontal view taken on the broken line 2-2 of Fig. 1. Fig. 3 is a view similar to Fig. 2 but illustrating the position of the parts under full buff. Fig. et is a vertical transverse sectional view taken on the line 4*4 of Fig. 1, and Fi 5 is a detailed perspective of one of the followers employed with my arrangement.

In said drawing, 10--10 denote channelshaped center or draft sills of a railway car, to the inner faces of which are secured rear stops 11-11 and front stops 12-12, the latter and the sills being slotted to accommodate a coupler-key 13 which connects the draw bar 14 with a horizontal yoke 15. The arms of the yoke 15 have elongated slots 16 to accommodate the inward movements of the key 13 without actuating the yoke, as clearly appears from Figs. 2 and 3.

e improved friction gear, as shown, comprises a rear follower 17, front follower 18, transversely movable wedge blocks I9- 19, a plurality vof wedges 20-20 also mov ably transverse-ly, and 3 wedge blocks 21, 22 and 23. All of said wedge blocks 21, 22 and 23 are provided with upper and lower sets of horizontally alined perforations to accommodate upper and lower bolts 24.-24. Mounted on each of said bolts 24 is a spring 25, confined between a rear spring follower 26 and a front spring follower 27. Each of the front spring followers 27 is provided Specicatien of Letters Patent.

Patented dpr. 2Q, it. Serial No. 156,916.

with a forwardly extended bushing 28 that passes through a suitable recess 29 in the rear follower 17 and bears against the rear wedge block 23. Each of the transversely movable wedges 19 is beveled at its ends, as indicated at 30-3O to cooperate with correspondingly inclined sets of opposed wedging faces 31-31 on the interior of each of the followers 17 and 18. As clearly appears from Fig. each of the followers 17 and 18 is recessed on its sides, as indicated at 32, to accommodate the arms of the horizontal yoke.

The normal position ofthe parts is as shown in Fig. 2. Upon bui'iing movement, the front follower 18 will forced rearwardly while the rear follower 17 is held stationary. As the two followers thus relatively approach each other, the vertically extending wedges 19-19 will be forced inwardly toward the center line of the gear. This inward movement of the wedges 19- 19 will cause a corresponding inward movement of the wedge blocks 20-20 and the latter in turn will force the separation longitudinally of the three wedge blocks 21, 22 and 23. The movement of wedge blocks 21, 22 and 23 thereby causes each of the front spring followers 27 to move rearwardly with respect to the rear follower 17 and each of the rear spring followers 26 to move forwardly through the instrumentalities of the bolts 24-24.-. In other words, the springs 25 are compressed from both ends simultaneously upon actuation of the friction parts. The operation is similar under draft except that in this case, the springs will also move bodily forwardly as a unit but they will be compressed from both ends in the same manner as under bud.

By the arrangement above described, I am enabled to place all the friction elements within the usual spacing provided for single spring draft gears and to utilize said space to the best possible extent by employing a large number of wedge elements having contacting friction faces. Furthermore, I am enabled to employ vertical twin arranged springs and to locate them between the sills and without weakening the latter by slotting them for the accommodation of any bolts or other elements of the gear.

I claim 1. In a draft rigging, the combination with draft sills and followers, of friction elements interposed between and actuated by the followers, a draw bar, a horizontal yoke operatively connecting the draw bar with the followers, spring means located outside of the followers, and means, disposed above and below the yoke interposed between the friction elements and said spring means for compressing the latter simultaneously upon both ends upon actuation of the friction elements.

2. In a draft rigging, the combination with draft sills and followers, of a plurality of friction elements interposed between and actuated by the followers, said elements including two members movable transversely of the followers and always in contact therewith, a draw bar, a horizontal yoke operatively connecting' the draw bar with the followers, vertical twin arranged springs at the rear of the rear follower, one above and the other below the horizontal yoke, and means interposed between said friction elements and said springs for compressing said springs upon relative approach of the followers.

3. In a draft rigging, the combination with draft sills and a pair of relatively movable followers, of friction elements interposed between said followers including transversely movable wedges and longitudinally movable wedges, a spring located between the sills at the rear of the rear follower, and means interposed between said friction elements and said spring for compressing` said spring simultaneously from ve cents each,

each end upon relative appro-ach of the followers.

et. In a draft rigging, the combination with draft sills and a pair of followers, each follower having a set of opposed wedge faces on its interior, of a pair of transversely movable wedges coperable with the wedge faces of the followers, a plurality of longitudinally movable wedges cooperable with the 'transversely movable wedges, vertical twin arranged springs at the rear of the rear follower, and connecting bolts from said springs to the friction elements and passing through said longitudiu nal-ly movable wedges.

In a draft rigging, the combination Yith draft sills and followers, of a plurality of friction elements interposed between and actuated by the followers, said elements including longitudinally movable end members normally out of contact with said followers but adapted to approach and contact lthe inner faces thereof upon relative approach of the followers, a draw bar, a horizontal yoke operatively connecting the draw bar with the followers, twinarranged springs at the rear of the rear follower, and means disposed abo-ve and below the yoke and interposed between the friction elef ments and said twin springs fo-r compressing the latter upon relative approach of the followers.

In witness that I claim the foregoing l have hereunto subscribed my name this 7th day of March, 1917.

JOI-IN F. OGONNOB.

by addressing the Commissioner of Patents,

Washington, D. 1U. 

